Results 111 to 120 of about 171,691 (281)

Evolution of the Most Massive Galaxies to z=0.6: I. A New Method for Physical Parameter Estimation

, 2011
We use principal component analysis (PCA) to estimate stellar masses, mean stellar ages, star formation histories (SFHs), dust extinctions and stellar velocity dispersions for ~290,000 galaxies with stellar masses greater than $10^{11}Msun and redshifts ...
Abazajian, Abazajian, Adam S. Bolton, Aihara, Alongi, Asari, Balogh, Bell, Bell, Bell, Benjamin A. Weaver, Benson, Bernardi, Best, Best, Best, Blanton, Boehringer, Borch, Bower, Bressan, Brinchmann, Bruzual, Budavári, Cappellari, Chabrier, Charlot, Chen, Chen, Christy A. Tremonti, Claudia Maraston, Conroy, Croton, Donald P. Schneider, Drory, Eisenstein, Eminian, Fabian, Fagotto, Fagotto, Fukugita, Gallazzi, Gallazzi, Gallazzi, Girardi, Gorgas, Graham, Graham, Graham, Guinevere Kauffmann, Gunawardhana, Gunn, Gunn, Heavens, Heckman, Hogg, Hoversten, Hu, John Chisholm, Jon Brinkmann, Juneau, Kang, Kannappan, Karim, Katarina Kovač, Kauffmann, Kauffmann, Kauffmann, Kauffmann, Kauffmann, Kaviraj, Kaviraj, Kennicutt, Kevin Bundy, Kriek, Kriek, Kroupa, Le Borgne, Li, Li, Lu, Madgwick, Madgwick, Maraston, Maraston, Maraston, Maraston, Masters, McNamara, Meynet, Naab, Oconnell, Padmanabhan, Panter, Pearce, Pier, Salim, Salim, Salpeter, Scarlata, Schaller, Schlegel, Schlegel, Simon White, Stoughton, Strauss, Sánchez-Blázquez, Thomas, Thomas, Thomas, Timothy M. Heckman, Tremaine, Tremonti, van der Wel, Vazdekis, Wang, Wang, Wild, Worthey, Worthey, Yan-Mei Chen, York, Zheng, Zibetti   +123 more
core   +1 more source

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

FEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López, Özge Yilmaz Ardicli, Mübeccel Akdis   +2 more
wiley   +1 more source

The Origin of Young Stellar Populations in NGC 1783: Accretion of External Stars

The Astrophysical Journal
The presence of young stellar populations in the Large Magellanic Cloud cluster NGC 1783 has caught significant attention, with suggestions ranging from it being a genuine secondary stellar generation to a population of blue straggler stars or simply ...
Li Wang, Licai Deng, Xiaoying Pang, Long Wang, Richard de Grijs, Antonino P. Milone, Chengyuan Li   +6 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

New Stellar Parameters, Metallicities, and Elemental Abundance Ratios for 311 Metal-poor Stars

The Astronomical Journal
We present equivalent widths, improved model atmosphere parameters, and revised abundances for 14 species of 11 elements derived from high-resolution optical spectroscopy of 311 metal-poor stars.
Sanil Mittal, Ian U. Roederer
doaj   +1 more source

Calibrated stellar models for metal-poor population

, 2004
We extend to lower metallicities recent evolutionary computations devoted to Magellanic Clouds stars, presenting and discussing new stellar models with Z=0.0002, 0.0004, 0.0006, 0.001 and suitable assumptions about the original He content.
Alexander, Angulo, Bahcall, Barbaro, Bertelli, Bertelli, Bono, Brocato, Brocato, Brocato, Canuto, Carraro, Carretta, Carretta, Cassisi, Cassisi, Cassisi, Cassisi, Castellani, Castellani, Castellani, Castellani, Castellani, Castellani, Castellani, Castelli, Castelli, Caughlan, Chaboyer, Chaboyer, Chabrier, Ciacio, Degl'Innocenti, Dominguez, Ferraro, Gallart, Girardi, Girardi, Gratton, Haft, Harris, Hubbard, Iglesias, Itoh, Itoh, Itoh, Kraft, Lejeune, Maeder, Mateo, Mihalas, Monelli, Mowlavi, Munakata, P. Cariulo, Pagel, Palacios, Rey, Richard, Richer, Rogers, Rogers, Rood, Rutledge, S. Degl'Innocenti, Salaris, Salaris, Salaris, Salaris, Salaris, Salasnich, Schaller, Stetson, Straniero, Straniero, Suntzeff, Thoul, V. Castellani, VandenBerg, VandenBerg, VandenBergh, Walker, Woo, Yi, Zinn, Zinn   +85 more
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Spectropolarimetry for Discerning Geometry and Structure in Circumstellar Media of Hot Massive Stars

Galaxies
Spectropolarimetric techniques are a mainstay of astrophysical inquiry, ranging from Solar System objects to the Cosmic Background Radiation. This review highlights applications of stellar polarimetry for massive hot stars, particularly in the context of
Richard Ignace, Kenneth G. Gayley, Roberto Casini, Paul Scowen, Christiana Erba, Jeremy Drake   +5 more
doaj   +1 more source

The hybrid solution for the Fundamental Plane

, 2013
By exploiting the database of early-type galaxies (ETGs) members of the WINGS survey of nearby clusters, we address here the long debated question of the origin and shape of the Fundamental Plane (FP).
Bettoni, D., Bindoni, D., Cava, A., Couch, W. J., D'Onofrio, M., Dressler, A., Fasano, G., Fritz, J., Gullieuszik, M., Kjaergaard, P., Marziani, P., Moles, M., Moretti, A., Omizzolo, A., Poggianti, B. M., Varela, J., Vulcani, B.   +16 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source